401851159 has 4 divisors (see below), whose sum is σ = 423001240. Its totient is φ = 380701080.

The previous prime is 401851157. The next prime is 401851169. The reversal of 401851159 is 951158104.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 401851159 - 2¹ = 401851157 is a prime.

It is a super-3 number, since 3×401851159³ (a number of 27 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (401851157) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10575012 + ... + 10575049.

It is an arithmetic number, because the mean of its divisors is an integer number (105750310).

Almost surely, 2^401851159 is an apocalyptic number.

401851159 is a deficient number, since it is larger than the sum of its proper divisors (21150081).

401851159 is a wasteful number, since it uses less digits than its factorization.

401851159 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21150080.

The product of its (nonzero) digits is 7200, while the sum is 34.

The square root of 401851159 is about 20046.2255549517. The cubic root of 401851159 is about 737.9411721774.

The spelling of 401851159 in words is "four hundred one million, eight hundred fifty-one thousand, one hundred fifty-nine".